iOS 5 is now available for download. Below are the direct download links of iOS 5 ipsw files . You can also update your iPhone 4 iPod Touch 4 using iTunes 10.5 released a day ago . iOS 5 brings 200 new features on your device . To read the complete list of iOS 5 Features follow this article .

To download the iOS 5 firmware on iTunes , launch iTunes application on your Windows or Mac and connect your device using the USB cable. After your device is detected y iTunes , go to Help tab on the top and select “Check for Updates” as shown in the image below .